I just changed mine about 2 weeks ago. It was easy with the beams out. I used Energy Suspension bushings I got for free and they did not come with the cups so I reused the factory ones. (These were old stock, maybe the newer ones come with the cups?) I pressed out the old bushings with a socket and u-joint tool (oversized c-clamp) and then cleaned up the rubber still stuck to the cups with a small wire brush on the air grinder.
Edit- I just realized how old this thread is when I replied! I was wondering why Paul said he replaced his last week when he is currently on a road trip